Following the principles of “information sharing, centralized control”, it realizes uniform and systematic management for all the applications of a smart card with help of the IC technology (including the non-contact IC technology, namely the RFID technology. With massive information and high confidentiality, a smart card can realize functions including access control, attendance check, pre-paid consumption, identification, smart city card, smart campus card, social security and medical insurance management, document borrowing for reference, parking lot management, ETC, etc.